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Apparent Specific Volumes of Sucrose in Different Aqueous Cosolvent Mixtures at 298.2 K
This article explores research to determine the apparent specific volume of sucrose by measuring the density of sucrose in {cosolvent + water} mixtures at 298.2 K. The study finds that a mean apparent specific volume value of 0.632 cm³.g⁻¹ for sucrose in different aqueous-cosolvent mixtures could be adequate for practical purposes in pharmaceutical industries.
Date:
December 30, 2018
Creator:
Tinjacá, Darío; Muñoz, María M.; Martínez, Fleming; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
Generalized molecular solvation in non-aqueous solutions by a single parameter implicit solvation scheme
Article presenting a systematic parametrization protocol for the Self-Consistent Continuum Solvation (SCCS) model resulting in optimized parameters for 67 non-aqueous solvents. The parametrization is based on a collection of ≈6000 experimentally measured partition coefficients, which were collected in the Solv@TUM database presented here. The accuracy of the optimized SCCS model is comparable to the well-known universal continuum solvation model (SMx) family of methods, while relying on only a single fit parameter and thereby largely reducing statistical noise.
Date:
August 3, 2018
Creator:
Acree, William E. (William Eugene); Hille, Christoph; Ringe, Stefan; Deimel, Martin; Kunkel, Christian; Reuter, Karsten et al.
Object Type:
Article
System:
The UNT Digital Library
Genetic Mutations in the S-loop of Human Glutathione Synthetase: Links Between Substrate Binding, Active Site Structure and Allostery
This article uses molecular dynamics simulations and experimental point mutations to probe the role of S-loop residues in tertiary structure, substrate binding, and allosteric communication.
Date:
November 29, 2018
Creator:
Ingle, Brandall L.; Shrestha, Bibesh; De Jesus, Margarita C.; Conrad-Webb, Heather M.; Anderson, Mary E. & Cundari, Thomas R., 1964-
Object Type:
Article
System:
The UNT Digital Library
Controlling Topological States in Topological/Normal Insulator Heterostructures
This article contains a systematic investigation of the nature of the nontrivial interface states in topological/normal insulator (TI/NI) heterostructures.
Date:
November 26, 2018
Creator:
Costa, Marcio; Costa, Antônio T.; Freitas, Walter A.; Schmidt, Tome M.; Buongiorno Nardelli, Marco & Fazzio, Adalberto
Object Type:
Article
System:
The UNT Digital Library
Hydrogenase Biomimetics with Redox-Active Ligands: Synthesis, Structure, and Electrocatalytic Studies on [Fe₂(CO)₄(κ²-dppn)(µ-edt)] (edt = Ethanedithiolate; dppn = 1,8-bis(Diphenylphosphino)Naphthalene)
This article reports the preparation and characterisation of the simple dppn complex,[Fe2(CO)4(κ2-dppn)(µ-edt)], together with an investigation of its proton-reduction ability.
Date:
November 20, 2018
Creator:
Ghosh, Shishir; Rana, Shahed; Hollingsworth, Nathan; Richmond, Michael G.; Kabir, Shariff E. & Hogarth, Graeme
Object Type:
Article
System:
The UNT Digital Library
Improving Reliability and Failure Prevention in Automobile Microelectronics
Video from the Fall 2018 3 Minute Thesis (3MT®) Final Competition. In this video, Muthappan Asokan presents his research methods, findings, and its significance in non-technical language.
Date:
November 17, 2018
Creator:
Asokan, Muthappan
Object Type:
Video
System:
The UNT Digital Library
Pyrene Bearing Azo-Functionalized Porous Nanofibers for CO₂ Separation and Toxic Metal Cation Sensing
This article describes the construction of a novel luminescent azo-linked polymer from 1,3,6,8-tetra(4--aminophenyl)pyrene using a copper(I)-catalyzed oxidative homocoupling reaction.
Date:
August 6, 2018
Creator:
El-Kadri, Oussama M.; Tessema, Tsemre-Dingel; Almotawa, Ruaa M.; Arvapally, Ravi K.; Al-Sayah, Mohammad H.; Omary, Mohammad A. et al.
Object Type:
Article
System:
The UNT Digital Library
Polarizable ab initio QM/MM Study of the Reaction Mechanism of N-tert-Butyloxycarbonylation of Aniline in [EMIm][BF4]
This article presents the use of AMOEBA-based polarizable ab initio AM/MM simulations to investigate the reaction mechanism of the N-tert-butoxycarbonylation of aniline in a water/1-ethyl, 3-methyl imidazolium/tetrafluoroborate mixture.
Date:
October 31, 2018
Creator:
Vázquez-Montelongo, Erik Antonio; Vázquez-Cervantes, José Enrique & Cisneros, Gerardo Andrés
Object Type:
Article
System:
The UNT Digital Library
Triplet electron transfer and spin polarization in a palladium porphyrin–fullerene conjugate
Access:
Use of this item is restricted to the UNT Community
This article uses Transient electron paramagnetic resonance (TREPR) spectroscopy to investigate the pathway and dynamics of electron transfer in a palladium porphyrin–fullerene donor–acceptor conjugate.
Date:
October 29, 2018
Creator:
Poddutoori, Prashanth K.; Kandrashkin, Yuri E.; Obondi, Christopher O.; D'Souza, Francis & van der Est, Art
Object Type:
Article
System:
The UNT Digital Library
Magnetic ordering in a vanadium-organic coordination polymer using a pyrrolo[2,3-d:5,4-d0] bis(thiazole)-based ligand
This article presents the synthesis and characterization of a hybrid vanadium-organic coordination polymer with robust magnetic order, a Curie temperature TC of ~110 K, a coercive field of ~5 Oe at 5 K, and a maximum mass magnetization of about half that of the benchmark ferrimagnetic vanadium(tetracyanoethylene)~₂ (V·(TCNE)~₂).
Date:
October 11, 2018
Creator:
Getmanenko, Yulia A.; Mullins, Christopher S.; Nesterov, Vladimir N.; Lake, Stephanie; Risko, Chad & Johnston-Halperin, Ezekiel
Object Type:
Article
System:
The UNT Digital Library
Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction
Article describes a study where various normalization techniques were investigated in order to improve the quantitative capabilities of direct analyte probed nanoextraction (DAPNe).
Date:
September 27, 2018
Creator:
de Jesus, Janella; Bunch, Josephine; Verbeck, Guido F.; Webb, Roger P.; Costa, Catia; Goodwin, Richard J. A. et al.
Object Type:
Article
System:
The UNT Digital Library
Experimental and Computational Preference for Phosphine Regioselectivity and Stereoselective Tripodal Rotation in Hos₃(Co)₈(PPh₃)₂(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS)
This article investigates the site preference for ligand substitution in the benzothiazolate-bridged cluster HOs₃(CO)₁₀(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS) using PPh₃.
Date:
September 12, 2018
Creator:
Begum, Shahin A.; Chowdhury, Md. Arshad H.; Ghosh, Shishir; Tocher, Derek A.; Richmond, Michael G.; Yang, Li et al.
Object Type:
Article
System:
The UNT Digital Library
Reduced structural flexibility for an exonuclease deficient DNA polymerase III mutant
This article reports on the dynamics of E coli DNA polymerase III proofreading in the presence of its processivity factor, the β₂-sliding clamp, at varying base pair termini using single-molecule FRET.
Date:
June 29, 2018
Creator:
Gahlon, Hailey L.; Walker, Alice R.; Cisneros, Gerardo Andrés; Lamers, Meindert H. & Rueda, David S.
Object Type:
Article
System:
The UNT Digital Library
N-Doped graphene/C₆₀ covalent hybrid as a new material for energy harvesting applications
This article systematically investigates the degree of functionalization and the key structural features of the N-G/C₆₀ hybrid by a number of techniques including thermogravimetric analysis, X-ray photoelectron and Raman spectroscopies and transmission electron and atomic force microscopies.
Date:
August 26, 2018
Creator:
Barrejón, Myriam; Arellano, Luis M.; Gobeze, Habtom B.; Gómez-Escalonilla, María J.; Fierro, Jose Luis G.; D'Souza, Francis et al.
Object Type:
Article
System:
The UNT Digital Library
The C₂H₂ + NO₂ Reaction: Implications for High Pressure Oxidation of C₂H₂/NOx Mixtures
Article discussing an experimental and kinetic modeling study of the interaction between C₂H₂ and NOx under flow reactor conditions in the intermediate temperature range (600–900 K), high pressure (50–60 bar), and for stoichiometries ranging from reducing to strongly oxidizing. The results show that presence of NOx serves both to sensitize and inhibit oxidation of C₂H₂.
Date:
July 25, 2018
Creator:
Marshall, Paul; Leung, Caroline; Lopez, Jorge Gimenez; Rasmussen, Christian T.; Hashemi, Hamid; Glarborg, Peter et al.
Object Type:
Article
System:
The UNT Digital Library
Experimental and Computational Studies of the Kinetics of the Reaction of Hydrogen Atoms with Carbon Disulfide
Article discussing an investigation of the reaction of H + CS₂ products. The reaction was found to be pressure dependent and in the fall-off region or near the low pressure limit. Transition state theory yields an estimate for the high-pressure limit of addition over 290–300 K of 1.3 × 10−9 exp( −7.2 kJ mol −1 /RT) cm3 molecule −1 s −1. Uncertainties are discussed in the text.
Date:
July 7, 2018
Creator:
Kerr, Katherine E.; Gao, Yide & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Solubility and Apparent Specific Volume of Sucrose in Some Aqueous Polyethylene Glycol Mixtures at 298.2 K
This article determines and correlates the equilibrium solubility of sucrose in {PEG 200 (or 400) + water} mixtures at 298.2 K.
Date:
June 20, 2018
Creator:
Tinjacá, Darío; Muñoz, María M.; Rahimpour, Elaheh; Jouyban, Abolghasem; Martínez, Fleming & Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
Shining Light on Chitosan: A Review on the Usage of Chitosan for Photonics and Nanomaterials Research
This article highlights the different molecular-nano systems that are prepared or stabilized using the Chitosan polymer.
Date:
June 17, 2018
Creator:
Marpu, Sreekar & Benton, Erin N.
Object Type:
Article
System:
The UNT Digital Library
Metal Matrix Composite Coatings of Cupronickel Embedded with Nanoplatelets for Improved Corrosion Resistant Properties
This article studies the effects of nanoplatelet reinforcement on the durability, corrosion resistance, and mechanical properties of copper-nickel coatings.
Date:
June 3, 2018
Creator:
Thurber, Casey; Ahmad, Yahia H.; Calhoun, Margaret C.; Al-Shenawa, Amaal; D'Souza, Nandika; Mohamed, Adel M. A. et al.
Object Type:
Article
System:
The UNT Digital Library
Descriptors for Cyclooctasulfur: Estimation of Water−Solvent Partition Coefficients, Solubilities in Solvents, and Physicochemical Properties
This article uses literature data on the solubility of cyclooctasulfur in a number of solvents to drive Abraham descriptors for cyclooctasulfur.
Date:
May 21, 2018
Creator:
Abraham, M. H. (Michael H.) & Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
Calculation of the Surface Tension of Ordinary Organic and Ionic Liquids by Means of a Generally Applicable Computer Algorithm Based on the Group-Additivity Method
This article presents the calculation of the surface tension of ordinary organic and ionic liquids, based on a computer algorithm applying a refined group-additivity method.
Date:
April 16, 2018
Creator:
Naef, Rudolf
Object Type:
Article
System:
The UNT Digital Library
Determination of Asymmetric Dimethylarginine by Using Organic Semiconductor-Based Molecularly Imprinted Polymer Film
This article describes simple, fast and cheap procedure of Asymmetric dimethylarginine (ADMA) determination using a new chemosensor with an artificial recognition unit.
Date:
May 17, 2018
Creator:
Malyshev, Valerii; Michota-Kamińska, Agnieszka; Shao, Shuai; D'Souza, Francis & Noworyta, K.
Object Type:
Article
System:
The UNT Digital Library
Global Warming Potential Estimates for the C₁–C₃ Hydrochlorofluorocarbons (HCFCs) Included in the Kigali Amendment to the Montreal Protocol
This article reports global warming potentials (GWPs) for all C₁-C₃ hydrochlorofluorocarbons (HCFCs) based on estimated atmospheric lifetimes and theoretical methods used to calculate infrared absorption spectra.
Date:
May 4, 2018
Creator:
Papanastasiou, Dimitrios K.; Beltrone, Allison; Marshall, Paul & Burkholder, James B. (James Bart), 1954-
Object Type:
Article
System:
The UNT Digital Library
Rate Coefficient Measurements and Theoretical Analysis of the OH + (E)‑CF₃CH==CHCF₃ Reaction
Rate coefficients, k, for the gas-phase reaction of the OH radical with (E)CF3CHCHCF3 ((E)-1,1,1,4,4,4-hexafluoro-2-butene, HFO-1336mzz(E)) were measured over a range of temperatures (211−374 K) and bath gas pressures (20−300 Torr; He, N2) using a pulsed laser photolysis−laser-induced fluorescence (PLP−LIF) technique. k1(T) was independent of pressure over this range of conditions with k1(296 K) = (1.31 ± 0.15) × 10−13 cm3 molecule−1 s−1 and k1(T) = (6.94 ± 0.80) × 10−13exp[−(496 ± 10)/T] cm 3 molecule−1 s−1, where the uncertainties are 2σ, and the pre-exponential term includes estimated systematic error. Rate coefficients for the OD reaction were also determined over a range of temperatures (262−374 K) at 100 Torr (He). The OD rate coefficients were ∼15% greater than the OH values and showed similar temperature dependent behavior with k2(T) = (7.52 ± 0.44) × 10−13exp[−(476 ± 20)/T] and k2(296 K) = (1.53 ± 0.15) × 10−13 cm3 molecule−1 s−1. The rate coefficients for reaction 1 were also measured using a relative rate technique between 296 and 375 K with k1(296 K) measured to be (1.22 ± 0.1) × 10−13 cm3 molecule−1 s−1, in agreement with the PLP−LIF results. In addition, the 296 K rate coefficient for the O3 +( E)CF3CHCHCF3 reaction …
Date:
March 22, 2018
Creator:
Baasandorj, Munkhbayar; Marshall, Paul; Waterland, Robert L.; Ravishankara, A. R. & Burkholder, James B. (James Bart), 1954-
Object Type:
Article
System:
The UNT Digital Library